/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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package org.elasticsearch.core.internal.io;

import org.elasticsearch.test.ESTestCase;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;

import static org.hamcrest.Matchers.equalTo;

public class StreamsTests extends ESTestCase {
    public void testCopyFromInputStream() throws IOException {
        byte[] content = "content".getBytes(StandardCharsets.UTF_8);
        ByteArrayInputStream in = new ByteArrayInputStream(content);
        ByteArrayOutputStream out = new ByteArrayOutputStream(content.length);
        long count = Streams.copy(in, out);

        assertThat(count, equalTo((long) content.length));
        assertThat(Arrays.equals(content, out.toByteArray()), equalTo(true));
    }
}
